Welcome to SpaceBook - your textbook for everything in astronomy. Click on one of the chapters below to start your journey into the Cosmos.
Learn how to navigate the night sky.
Discover how we learn about the universe through light.
Understand the capabilities and limitations of telescopes.
Learn about the planets in our solar system and how they formed.
Learn about the lives of stars, and their use in measuring distances.
Discover key concepts for understanding distance and scale in the universe.
Learn about extrasolar planets, and the methods used to find them.
Learn about galaxy types, what they contain, and their history of discovery.
Find out about the beginning, evolution, and future of the universe.
Learn about life on Earth, and the possibilities for life elsewhere.